limiw equ 30h ;厘米位
miao equ 31h ;秒位
fenmi equ 32h ;分米位
fmiao equ 33h ;分秒位
meter equ 34h ;米位
fenzh equ 35h ;分位
point equ 36h ;小数点位
shimi equ 37h ;十米位
shifn equ 38h ;十分位
sudu equ 39h ;速度控制
jishk equ 3ah ;记时开始
zhond equ 3bh;终点
zhodu equ 3ch；中断
zhon equ 3eh；中点
maicho equ 3fh；脉冲
jinweb equ 40h；进位表
bhcs equ 41h；保护措施
dpan equ 42h；
fenchu equ 43h；
fencun equ 44h；
pand equ 45h；
fenmc equ 51h；分米差
org 0000h；起始地址
ajmp main；跳转到主程序
org 000bh；起始地址
ajmp st0；跳转到ST0
org 001bh;起始地址
ajmp st1;跳转到ST1
org 0100h;起始地址
main:
mov limiw,#00h厘米位
mov miao,#00h秒位
mov fenmi,#00h;分米位
mov fmiao,#00h;分秒位
mov meter,#00h;米位
mov fenzh,#00h ;分位
mov point,#0bh ;小数点位
mov shimi,#00h;十米位
mov shifn,#00h;十分位
mov jishk,#00h；
mov zhond,#00h
mov zhodu,#00h
mov zhon,#00h
mov maicho,#00h
mov jinweb,#03h
mov bhcs,#00h
mov sp,#6fh
mov tmod,#21h
mov th0,#3ch
mov tl0,#0b0h
mov th1,#9ch
mov tl1,#9ch
setb ea
setb et0
setb et1
mov p1,#0aah
acall xianshi
qidong:
jb p0.0,qidong；等待p0.0启动
acall delay
jb p0.0,qidong；等待p0.0启动
mov sudu,#03h
clr p2.6
clr p2.7
setb tr1
start:
jnb p2.3,start
acall delay
jnb p2.3,start
mov sudu,#07h
setb tr0
mov jishk,#01h
call delaa
call delaa
call delaa
call delaa
call delaa
jiance:
mov c,p2.0
mov 22h,c
mov c,p2.1
mov 23h,c
mov c,p2.2
mov 24h,c
mov c,p2.3
mov 25h,c
mov c,p2.4
mov 26h,c
zhangai:
jb 25h,stop
jnb 22h,youzhuan
jnb 23h,youzhuan
jnb 24h,zuozhuan
jnb 26h,zuozhuan
ajmp jiance
zuozhuan:
clr p0.5
clr p0.4
mov sudu,#05h
acall delaa
setb p0.4
setb p0.5
mov sudu,#07h
ajmp jiance
youzhuan:
clr p0.6
clr p0.7
mov sudu,#05h
acall delaa
setb p0.7
setb p0.6
mov sudu,#07h
ajmp jiance
stop:
acall delay
jnb 25h,zhangai
clr tr0
mov a,fenmi
mov fenmc,a
mov a,#02h
add a,fenmc
mov fenmc,a
here: cjne a,fenmi,here
clr tr1
setb p2.6
acall delaa
setb p2.7
ajmp $
st0:
push acc
push psw
mov th0,#3ch
mov tl0,#0b0h
inc zhond
mov a,#0ah
cjne a,zhond,out
mov zhond,#00h
inc zhodu
mov a,#02h
cjne a,zhodu,miepo
mov point,#0bh
mov zhodu,#00h
inc miao
mov a,#0ah
cjne a,miao,out
mov miao,#00h
inc fmiao
mov a,#06h
cjne a,fmiao,out
mov fmiao,#00h
inc fenzh
mov a,#0ah
cjne a,fenzh,out
mov fenzh,#00h
inc shifn
out:
call xianshi
outb:
pop psw
pop acc
reti
miepo:
mov point,#0ah
ajmp out
st1:
push acc
push psw
inc zhon
mov a,sudu
cjne a,zhon,hig
setb p2.7
ajmp outi
hig:
mov a,#0ah
cjne a,zhon,outi
mov zhon,#00h
clr p2.7
outi:
mov a,#01h
cjne a,jishk,outb
jb p2.5,gao
mov c,p2.5
mov 21h,c
orl c,20h
clr 20h
jc youbh
ajmp outb
gao:
setb 20h
ajmp outb
youbh:
inc maicho
mov a,jinweb
cjne a,maicho,outb
mov maicho,#00h
inc bhcs
mov a,#02h
cjne a,bhcs,jici
mov jinweb,#03h
goon:inc limiw
mov a,#0ah
cjne a,limiw,out
mov limiw,#00h
inc fenmi
cjne a,fenmi,out
mov fenmi,#00h
inc meter
cjne a,meter,out
mov meter,#00h
inc shimi
ajmp out
jici:
mov jinweb,#02h
ajmp goon
xianshi:
mov p1,#0aah
mov p1,#0cch
mov a,limiw
swap a
add a,miao
mov p1,a
nop
nop
mov p1,#0ddh
mov a,fenmi
swap a
add a,fmiao
mov p1,a
nop
nop
mov p1,#0eeh
mov a,#0b0h
add a,point
mov p1,a
nop
nop
mov p1,#0eeh
mov a,meter
swap a
add a,fenzh
mov p1,a
nop
nop
mov p1,#0ffh
mov a,shimi
swap a
add a,shifn
mov p1,a
ret
delay:
mov 46h,#0ffh
mov 47h,#0ffh
L0:djnz 47h,L1
L1:djnz 46h,L
ret
delaa:
mov 48h,#0ah
L0:mov 49h,#0afh
L1:mov 50h,#0ffh
L2:djnz 50h,L2
djnz 49h,L1
djnz 48h,L0
ret
求助 注释一下此程序
miao equ 31h ;秒位
fenmi equ 32h ;分米位
fmiao equ 33h ;分秒位
meter equ 34h ;米位
fenzh equ 35h ;分位
point equ 36h ;小数点位
shimi equ 37h ;十米位
shifn equ 38h ;十分位
sudu equ 39h ;速度控制
jishk equ 3ah ;记时开始
zhond equ 3bh;终点
zhodu equ 3ch；中断
zhon equ 3eh；中点
maicho equ 3fh；脉冲
jinweb equ 40h；进位表
bhcs equ 41h；保护措施
dpan equ 42h；
fenchu equ 43h；
fencun equ 44h；
pand equ 45h；
fenmc equ 51h；分米差
org 0000h；起始地址
ajmp main；跳转到主程序
org 000bh；起始地址
ajmp st0；跳转到ST0
org 001bh;起始地址
ajmp st1;跳转到ST1
org 0100h;起始地址
main:
mov limiw,#00h厘米位
mov miao,#00h秒位
mov fenmi,#00h;分米位
mov fmiao,#00h;分秒位
mov meter,#00h;米位
mov fenzh,#00h ;分位
mov point,#0bh ;小数点位
mov shimi,#00h;十米位
mov shifn,#00h;十分位
mov jishk,#00h；
mov zhond,#00h
mov zhodu,#00h
mov zhon,#00h
mov maicho,#00h
mov jinweb,#03h
mov bhcs,#00h
mov sp,#6fh
mov tmod,#21h
mov th0,#3ch
mov tl0,#0b0h
mov th1,#9ch
mov tl1,#9ch
setb ea
setb et0
setb et1
mov p1,#0aah
acall xianshi
qidong:
jb p0.0,qidong；等待p0.0启动
acall delay
jb p0.0,qidong；等待p0.0启动
mov sudu,#03h
clr p2.6
clr p2.7
setb tr1
start:
jnb p2.3,start
acall delay
jnb p2.3,start
mov sudu,#07h
setb tr0
mov jishk,#01h
call delaa
call delaa
call delaa
call delaa
call delaa
jiance:
mov c,p2.0
mov 22h,c
mov c,p2.1
mov 23h,c
mov c,p2.2
mov 24h,c
mov c,p2.3
mov 25h,c
mov c,p2.4
mov 26h,c
zhangai:
jb 25h,stop
jnb 22h,youzhuan
jnb 23h,youzhuan
jnb 24h,zuozhuan
jnb 26h,zuozhuan
ajmp jiance
zuozhuan:
clr p0.5
clr p0.4
mov sudu,#05h
acall delaa
setb p0.4
setb p0.5
mov sudu,#07h
ajmp jiance
youzhuan:
clr p0.6
clr p0.7
mov sudu,#05h
acall delaa
setb p0.7
setb p0.6
mov sudu,#07h
ajmp jiance
stop:
acall delay
jnb 25h,zhangai
clr tr0
mov a,fenmi
mov fenmc,a
mov a,#02h
add a,fenmc
mov fenmc,a
here: cjne a,fenmi,here
clr tr1
setb p2.6
acall delaa
setb p2.7
ajmp $
st0:
push acc
push psw
mov th0,#3ch
mov tl0,#0b0h
inc zhond
mov a,#0ah
cjne a,zhond,out
mov zhond,#00h
inc zhodu
mov a,#02h
cjne a,zhodu,miepo
mov point,#0bh
mov zhodu,#00h
inc miao
mov a,#0ah
cjne a,miao,out
mov miao,#00h
inc fmiao
mov a,#06h
cjne a,fmiao,out
mov fmiao,#00h
inc fenzh
mov a,#0ah
cjne a,fenzh,out
mov fenzh,#00h
inc shifn
out:
call xianshi
outb:
pop psw
pop acc
reti
miepo:
mov point,#0ah
ajmp out
st1:
push acc
push psw
inc zhon
mov a,sudu
cjne a,zhon,hig
setb p2.7
ajmp outi
hig:
mov a,#0ah
cjne a,zhon,outi
mov zhon,#00h
clr p2.7
outi:
mov a,#01h
cjne a,jishk,outb
jb p2.5,gao
mov c,p2.5
mov 21h,c
orl c,20h
clr 20h
jc youbh
ajmp outb
gao:
setb 20h
ajmp outb
youbh:
inc maicho
mov a,jinweb
cjne a,maicho,outb
mov maicho,#00h
inc bhcs
mov a,#02h
cjne a,bhcs,jici
mov jinweb,#03h
goon:inc limiw
mov a,#0ah
cjne a,limiw,out
mov limiw,#00h
inc fenmi
cjne a,fenmi,out
mov fenmi,#00h
inc meter
cjne a,meter,out
mov meter,#00h
inc shimi
ajmp out
jici:
mov jinweb,#02h
ajmp goon
xianshi:
mov p1,#0aah
mov p1,#0cch
mov a,limiw
swap a
add a,miao
mov p1,a
nop
nop
mov p1,#0ddh
mov a,fenmi
swap a
add a,fmiao
mov p1,a
nop
nop
mov p1,#0eeh
mov a,#0b0h
add a,point
mov p1,a
nop
nop
mov p1,#0eeh
mov a,meter
swap a
add a,fenzh
mov p1,a
nop
nop
mov p1,#0ffh
mov a,shimi
swap a
add a,shifn
mov p1,a
ret
delay:
mov 46h,#0ffh
mov 47h,#0ffh
L0:djnz 47h,L1
L1:djnz 46h,L
ret
delaa:
mov 48h,#0ah
L0:mov 49h,#0afh
L1:mov 50h,#0ffh
L2:djnz 50h,L2
djnz 49h,L1
djnz 48h,L0
ret
求助 注释一下此程序
